Resistor Color Code Calculator
Supports 4, 5, and 6 bands (tabs). Shows live bands, nominal value, tolerance range, and TCR for 6-band.
Tip: 4-band parts often use Gold (±5%) or Silver (±10%) for tolerance; “None” means ±20%.
Note: 5-band (often metal film) provides one extra significant digit for higher precision.
Common TCRs (ppm/°C): Black 250, Brown 100, Red 50, Orange 15, Yellow 25, Green 20, Blue 10, Violet 5, Gray 1. May vary by manufacturer.
Reference: IEC 60062 color code. For engineering guidance only—always confirm with the component datasheet.